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INVASIVE SPECIES - LATEST
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Great Lakes Center, SAMC 319
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Elm Zigzag Sawfly
Aproceros leucopoda
The elm zigzag sawfly is still in the early detection phase in North America. Please report all sightings of elm zigzag sawfly through iMapInvasives, to help determine the distribution of this species, ahead of any management efforts. Since most elm trees can recover from elm zigzag sawfly defoliation events, control may not be necessary, and research into management options is ongoing.
Primrose-willow
Ludwigia peploides
Primrose-willow is an aquatic perennial species that floats on water or sprawls along mud in wet environments. It is one of WNY PRISM's approaching region priority species. Keep a lookout!
Parrot Feather
Myriophyllum aquaticum
Parrot feather is an aquatic perennial species named for its bright green, feather-like appearance.
Red Swamp Crayfish
Procambarus clarkii
Red swamp crayfish are crustaceans that are dark red in color and grow to 2-5 inches in length. The plates on the body of the red swamp crayfish touch on the center of its back distinguishing from the native white river crayfish.
Japanese Honeysuckle
Lonicera japonica
Japanese honeysuckle is a woody, perennial vine that can both trail and climb, reaching heights of up to 80 feet. It grows over shrubs and trees, causing them to collapse under the additional weight or girdling the supporting tree.
Common Teasel
Dipsacus fullonum
Common teasel, also referred to as Fuller’s teasel, is a biennial or short-lived perennial herbaceous plant that produces a basal rosette of puckering leaves for one or more years, and then sends up a prickly, flowering stem.